Developers only store some of the solar energy in a relatively small battery to operate the CPV tracker and the measuring system.

开发人员只将一小部分电能存入一块相对较小的电池中为CPV追踪系统和控制系统供电。

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Wireless sensors require energy to operate, and battery maintenance, economic battery replacement, and safe battery disposal are barriers.

无线传感器需要能量才能工作，同时还需要对电池的维护，经济可承受的电池替换以及安全的电池处理方法。

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All this is expected to enable the sensors and nodes to operate for years without needing battery replacements, says Dr Rice.

所有这一切的研究能使传感器和节点在无需更换电池的情况下运行好几年，Rice博士说。

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Imagine how much power it takes to drive an artificial heart, so you've got to have a battery or some way of generating power continuously to operate that and that makes it difficult to think about implantable and so that's a really good example of Biomedical Engineering.

驱动人工心脏所需要的能量是难以想像的,所以需要电池或者是某种持续发电装置,来给人工心脏提供能量,这就增加了人工心脏的植入难度,这是很好的生物医学工程的例子

耶鲁公开课 - 生物医学工程探索课程节选

Also worth note, Instacube sports a built-in rechargeable battery, allowing it to operate completely untethered when the mood strikes.

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Battery technology allows the vehicle to operate with zero emissions.

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Based on Samsung's BSI low power process technology, the S5K3H2 is able to operate on 1.2 voltage levels enabling longer battery life for high-end mobile and smartphones.

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